Pharmaceutical Grade Cathine (S)-Cathine Tartrate from China
(S)-Cathine tartrate is the tartrate salt of the specific enantiomer of cathine, a synthetic reproduction of the natural ephedra alkaloid, meeting USP standards for drug intermediates. It is classified in HTS 2939.43.00.00 as a cathine salt, adhering to chapter provisions for chemically defined organic compounds and their salts. Used exclusively in controlled pharmaceutical manufacturing.
Duty Rate — China → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide chiral purity documentation (e.g
• >99% ee) and stereoisomer identification to confirm HTS specificity
• Comply with Controlled Substances Act import permits; declare as 'bulk drug substance' on CBP forms
• Use child-resistant packaging if retail-distributed, though bulk chemical imports typically require industrial labeling